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Carroll County, Illinois
Mount Carroll courthouse.jpg
Carroll County Courthouse
Map of Illinois highlighting Carroll County
Location in the state of Illinois
Map of the U.S. highlighting Illinois
Illinois's location in the U.S.
Founded 1839
Named for Charles Carroll
Seat Mount Carroll
Largest city Savanna
Area
 - Total
 - Land
 - Water

466 sq mi (1,207 km²)
445 sq mi (1,153 km²)
22 sq mi (57 km²), 4.6
Population
 - (2020)
 - Density

15,702
Congressional district 17th
Time zone Central: UTC-6/-5
Website http://www.carroll-county.net/

Carroll County is a county located in the U.S. state of Illinois. As of the 2020 census, the population was 15,702.[1] Its county seat is Mount Carroll.[2]

History[]

Carroll County was formed in 1839 out of Jo Daviess County. The county is named for Charles Carroll who signed the Declaration of Independence.[3] Carroll, who died in 1832, was the last signer to die.

Geography[]

According to the U.S. Census Bureau, the county has a total area of 466 square miles (1,210 km2), of which 445 square miles (1,150 km2) is land and 22 square miles (57 km2) (4.6%) is water.[4] The Mississippi Palisades State Park is in this county, just north of the city of Savanna. The Savanna Army Depot is located partly in this county.

Adjacent counties[]

National protected area[]

  • Upper Mississippi River National Wildlife and Fish Refuge (part)

Major highways[]

  • US 52.svg US Route 52
  • Illinois 40.svg Illinois Route 40
  • Illinois 64.svg Illinois Route 64
  • Illinois 72.svg Illinois Route 72
  • Illinois 73.svg Illinois Route 73
  • Illinois 78.svg Illinois Route 78
  • Illinois 84.svg Illinois Route 84

Climate and weather[]

Climate chart for Mount Carroll, Illinois
JFMAMJJASOND
 
 
1.43
 
29
7
 
 
1.52
 
35
13
 
 
2.63
 
47
25
 
 
3.67
 
60
35
 
 
4.34
 
72
46
 
 
4.77
 
82
54
 
 
3.83
 
85
59
 
 
4.54
 
83
56
 
 
3.48
 
76
47
 
 
2.73
 
64
36
 
 
2.84
 
47
26
 
 
2.02
 
34
14
temperatures in °Cprecipitation totals in mm
source: The Weather Channel[5]

In recent years, average temperatures in the county seat of Mount Carroll have ranged from a low of 7 °F (−14 °C) in January to a high of 85 °F (29 °C) in July, although a record low of −31 °F (−35.0 °C) was recorded in January 1910 and a record high of 108 °F (42 °C) was recorded in July 1936. Average monthly precipitation ranged from 1.43 inches (36 mm) in January to 4.77 inches (121 mm) in June.[5]

Demographics[]

2000 census age pyramid for Carroll County.

Historical populations
Census Pop.
1840 1,023
1850 4,586 348.3%
1860 11,733 155.8%
1870 16,705 42.4%
1880 16,976 1.6%
1890 18,320 7.9%
1900 18,963 3.5%
1910 18,035 −4.9%
1920 19,345 7.3%
1930 18,433 −4.7%
1940 17,987 −2.4%
1950 18,976 5.5%
1960 19,507 2.8%
1970 19,276 −1.2%
1980 18,779 −2.6%
1990 16,805 −10.5%
2000 16,674 −0.8%
2010 15,387 −7.7%
U.S. Decennial Census[6]
1790-1960[7] 1900-1990[8]
1990-2000[9] 2010-2020[1]

As of the 2010 United States Census, there were 15,387 people, 6,622 households, and 4,343 families residing in the county.[10] The population density was 34.6 inhabitants per square mile (13.4 /km2). There were 8,437 housing units at an average density of 19.0 per square mile (7.3 /km2).[4] The racial makeup of the county was 96.9% white, 0.8% black or African American, 0.3% Asian, 0.3% American Indian, 0.6% from other races, and 1.1% from two or more races. Those of Hispanic or Latino origin made up 2.8% of the population.[10] In terms of ancestry, 40.4% were German, 14.0% were Irish, 11.2% were English, and 10.6% were American.[11]

Of the 6,622 households, 26.3% had children under the age of 18 living with them, 53.1% were married couples living together, 8.2% had a female householder with no husband present, 34.4% were non-families, and 29.8% of all households were made up of individuals. The average household size was 2.29 and the average family size was 2.80. The median age was 46.5 years.[10]

The median income for a household in the county was $44,805 and the median income for a family was $55,341. Males had a median income of $42,421 versus $27,552 for females. The per capita income for the county was $25,914. About 7.8% of families and 11.7% of the population were below the poverty line, including 18.4% of those under age 18 and 5.8% of those age 65 or over.[12]

Education[]

Communities[]

Cities[]

  • Lanark
  • Mt. Carroll
  • Savanna

Villages[]

  • Milledgeville
  • Chadwick
  • Shannon
  • Thomson

Townships[]

Carroll County is divided into these twelve townships:

  • Cherry Grove-Shannon
  • Elkhorn Grove
  • Fairhaven
  • Freedom
  • Mount Carroll
  • Rock Creek-Lima
  • Salem
  • Savanna
  • Washington
  • Woodland
  • Wysox
  • York

Unincorporated Communities[]

  • Argo Fay
  • Arnold
  • Ashdale Junction
  • Ayers
  • Blackhawk
  • Burke
  • Center Hill
  • Ebner
  • Elkhorn Grove
  • Fair Haven
  • Georgetown
  • Hazelhurst
  • Hickory Grove
  • Hitt
  • Ideal
  • Kittredge
  • Marcus
  • Polsgrove
  • South Elkhorn
  • Wacker
  • Zier Cors

Notable people[]

Politics[]

United States presidential election results for Carroll County, Illinois[16]
Year Republican Democratic Third party
No.  % No.  % No.  %
2020 5,105 63.52% 2,748 34.19% 184 2.29%
2016 4,434 59.56% 2,447 32.87% 564 7.58%
2012 3,555 48.00% 3,665 49.49% 186 2.51%
2008 3,596 46.74% 3,965 51.54% 132 1.72%
2004 4,534 55.73% 3,537 43.48% 64 0.79%
2000 3,835 53.43% 3,113 43.37% 229 3.19%
1996 3,029 44.55% 2,926 43.04% 844 12.41%
1992 3,297 42.94% 2,854 37.17% 1,528 19.90%
1988 4,464 59.42% 2,990 39.80% 58 0.77%
1984 5,237 68.39% 2,398 31.31% 23 0.30%
1980 5,084 63.37% 2,154 26.85% 785 9.78%
1976 5,059 59.34% 3,372 39.55% 95 1.11%
1972 6,041 69.99% 2,571 29.79% 19 0.22%
1968 5,275 63.69% 2,558 30.89% 449 5.42%
1964 4,487 52.49% 4,062 47.51% 0 0.00%
1960 6,282 66.70% 3,097 32.88% 39 0.41%
1956 6,503 70.60% 2,693 29.24% 15 0.16%
1952 6,978 72.87% 2,584 26.98% 14 0.15%
1948 5,318 64.94% 2,809 34.30% 62 0.76%
1944 6,101 68.08% 2,843 31.72% 18 0.20%
1940 6,398 63.90% 3,592 35.87% 23 0.23%
1936 4,886 52.38% 4,368 46.83% 74 0.79%
1932 4,571 53.81% 3,812 44.87% 112 1.32%
1928 6,197 76.34% 1,876 23.11% 45 0.55%
1924 4,559 60.93% 603 8.06% 2,320 31.01%
1920 5,194 86.65% 606 10.11% 194 3.24%
1916 4,496 67.00% 1,980 29.51% 234 3.49%
1912 1,577 38.36% 1,098 26.71% 1,436 34.93%
1908 2,875 66.71% 1,129 26.19% 306 7.10%
1904 3,128 76.44% 691 16.89% 273 6.67%
1900 3,425 71.53% 1,266 26.44% 97 2.03%
1896 3,314 67.91% 1,480 30.33% 86 1.76%
1892 2,456 58.80% 1,444 34.57% 277 6.63%



As a part of Yankee-settled Northern Illinois, Carroll County became solidly Republican upon that party's formation in the 1850s. Of all the counties won by inaugural Republican Party presidential nominee John Charles Frémont in 1856, Carroll County was to maintain the longest unbroken string of supporting the GOP in subsequent elections. It would give a plurality to every subsequent Republican Presidential nominee up to George W. Bush in 2004, beating by three elections the second longest run of Indiana's Porter County which was to give a plurality to Bill Clinton in 1996.

In that 1996 election Bob Dole won Carroll County by only 1.51 percentage points – the smallest margin by a Republican to that point – and in 2008 Illinois native Barack Obama broke this last remaining GOP streak stretching back to Frémont by carrying the county by 4.80 percentage points. Obama was to repeat his win in 2012 by 1.49 percent, but a dramatic swing to Republican Donald Trump in 2016 saw him win by the largest margin since Ronald Reagan’s 1984 landslide by gaining 59.6% of the vote in Carroll County, scoring slightly higher than George H.W. Bush's victory in 1988 in which Bush won 59.4% of the vote in Carroll County.

The largest margin of victory ever in Carroll County was achieved by Warren G. Harding who won 86.7% of votes in the county during the 1920 United States presidential election.

See also[]

  • National Register of Historic Places listings in Carroll County, Illinois

References[]

  1. ^ a b "State & County QuickFacts". United States Census Bureau. http://quickfacts.census.gov/qfd/states/17/17015.html. 
  2. ^ "Find a County". National Association of Counties. http://www.naco.org/Counties/Pages/FindACounty.aspx. 
  3. ^ Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off.. pp. 70. https://archive.org/details/bub_gb_9V1IAAAAMAAJ. 
  4. ^ a b "Population, Housing Units, Area, and Density: 2010 - County". United States Census Bureau. http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_SF1/GCTPH1.CY10/0500000US17015. 
  5. ^ a b "Monthly Averages for Mount Carroll, Illinois". The Weather Channel. http://www.weather.com/weather/wxclimatology/monthly/graph/USIL0808. 
  6. ^ "U.S. Decennial Census". United States Census Bureau. https://www.census.gov/programs-surveys/decennial-census.html. 
  7. ^ "Historical Census Browser". University of Virginia Library. http://mapserver.lib.virginia.edu. 
  8. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. https://www.census.gov/population/cencounts/il190090.txt. 
  9. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000". United States Census Bureau. https://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf. 
  10. ^ a b c "DP-1 Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data". United States Census Bureau. http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_DP/DPDP1/0500000US17015. 
  11. ^ "DP02 SELECTED SOCIAL CHARACTERISTICS IN THE UNITED STATES – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP02/0500000US17015. 
  12. ^ "DP03 SELECTED ECONOMIC CHARACTERISTICS – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP03/0500000US17015. 
  13. ^ 'Illinois Blue Book 1933-1934,' Biographical Sketch of John Acker, pg. 219
  14. ^ "Kansas Governor Willis Joshua Bailey". National Governors Association. http://www.nga.org/cms/home/governors/past-governors-bios/page_kansas/col2-content/main-content-list/title_bailey_willis.html. 
  15. ^ 'Wisconsin Blue Book 1923,' Biographical Sketch of David J. Summerville, pg. 636
  16. ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". http://uselectionatlas.org/RESULTS. 

External links[]

Coordinates: 42°04′N 89°55′W / 42.06, -89.92

This page uses content from the English language Wikipedia. The original content was at Carroll County, Illinois. The list of authors can be seen in the page history. As with this Familypedia wiki, the content of Wikipedia is available under the Creative Commons License.
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